Redesign website

* Bump up Bootstrap to v5.3.0, Bootstrap Icon to v1.10.5.
* Use autoComplete.js to drop dependency on jQuery, typeahead.js.
* Support dark mode.
* New svg logo and icon with responsive color mode support.
* Improve section ids to make them easy to link in Markdown.
* Various markup cleanups and accessibility improvements.

.github/workflows/website.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.10'
+          python-version: '3.11'
           cache: pipenv
       - name: Install pipenv
         run: pip install pipenv

Makefile.am

@@ -182,14 +182,10 @@ AM_CFLAGS += $(onig_CFLAGS)
 
 ### Packaging
 
-docs/site.yml: configure.ac
-	sed 's/^jq_version: .*/jq_version: "$(VERSION)"/' $@ > $@.new
-	mv $@.new $@
-
 install-binaries: $(BUILT_SOURCES)
 	$(MAKE) $(AM_MAKEFLAGS) install-exec
 
-DOC_FILES = docs/content docs/public docs/templates docs/site.yml       \
+DOC_FILES = docs/content docs/public docs/templates                     \
         docs/Pipfile docs/Pipfile.lock docs/build_manpage.py            \
         docs/build_manpage.py docs/README.md jq.1.prebuilt
 

docs/Pipfile

@@ -9,4 +9,4 @@ verify_ssl = true
 jinja2 = "*"
 pyyaml = "*"
 markdown = "*"
-lxml = "*"
+lxml = "*"

docs/build_manpage.py

@@ -12,9 +12,9 @@
 # Prevent our markdown parser from trying to help by interpreting things in angle brackets as HTML tags.
 class EscapeHtml(Extension):
 
-    def extendMarkdown(self, md, md_globals):
-        del md.preprocessors['html_block']
-        del md.inlinePatterns['html']
+    def extendMarkdown(self, md):
+        md.preprocessors.deregister('html_block')
+        md.inlinePatterns.deregister('html')
 
 
 class RoffWalker(object):

docs/build_website.py

@@ -1,8 +1,9 @@
 #!/usr/bin/env python3
 import glob
 import itertools
-from jinja2 import Environment, FileSystemLoader, Markup, select_autoescape, contextfunction
+from jinja2 import Environment, FileSystemLoader, select_autoescape, pass_context
 from markdown import markdown
+from markupsafe import Markup
 import os
 import os.path
 import re
@@ -20,40 +21,44 @@ def load_yml_file(fn):
         return yaml.safe_load(f)
 
 
+env.globals['url'] = 'https://jqlang.github.io/jq'
+env.globals['root'] = '/jq'
+
 env.filters['search_id'] = lambda input: input.replace(r'`', '')
-env.filters['section_id'] = lambda input: re.sub(r"[^a-zA-Z0-9_]", '', input)
-env.filters['entry_id'] = lambda input: re.sub(r"[ `]", '', input)
+env.filters['section_id'] = lambda input: re.sub(
+    r'[^-a-zA-Z0-9_]', '', input.replace(' ', '-')).lower()
+env.filters['entry_id'] = lambda input: re.sub(
+    r'^(split|first-last-nth)$',
+    r'\1' + ('-1' if ';' not in input else '-2'),  # avoid id conflict
+    re.sub(
+        r'\b([^-]+)(?:-\1)+\b',
+        r'\1',  # e.g. range-range-range -> range
+        re.sub(r' ?/ ?|,? ', '-', re.sub(r'`|: .*|\(.*?\)', '', input)))
+).lower()
 env.filters['markdownify'] = lambda input: Markup(markdown(input))
-env.filters['no_paragraph'] = lambda input: Markup(re.sub(r"</?p>", '', input))
+env.filters['no_paragraph'] = lambda input: Markup(re.sub(r'</?p>', '', input))
 
-env.globals['unique_id'] = contextfunction(
+env.globals['unique_id'] = pass_context(
     lambda ctx: str(next(ctx['unique_ctr'])))
 
-env.globals.update(load_yml_file('site.yml'))
-
-env.globals['navigation'] = ['tutorial', 'download', 'manual']
-
 
-def generate_file(env, fname='content/1.tutorial/default.yml'):
+def generate_file(env, fname):
     path, base = os.path.split(fname)
     path = os.path.relpath(path, 'content')
     if path == '.':
         path = ''
-        slug = 'index'
         permalink = ''
     else:
-        slug = os.path.basename(path)
         permalink = path + '/'
 
     output_dir = os.path.join('output', path)
     output_path = os.path.join(output_dir, 'index.html')
 
-    template_name = re.sub(r".yml$", '.html.j2', base)
+    template_name = re.sub(r'.yml$', '.html.j2', base)
 
     ctx = load_yml_file(fname)
     ctx.update(unique_ctr=itertools.count(1),
                permalink=permalink,
-               slug=slug,
                navitem=path)
     os.makedirs(output_dir, exist_ok=True)
     env.get_template(template_name).stream(ctx).dump(output_path,

docs/content/download/default.yml

@@ -191,7 +191,7 @@ body:
       jq's documentation is compiled into static HTML using Python.
       To build the docs, run `pipenv run python3 build_website.py` from
       the docs/ subdirectory. To serve them locally, you can run
-      `python3 -m SimpleHTTPServer`. You'll need a few Python dependencies,
+      `python3 -m http.server`. You'll need a few Python dependencies,
       which can be installed by following the instructions in `docs/README.md`.
 
       The man page is built by `make jq.1`, or just `make`, also from